Last month was Australia's driest September on record, but this month is quickly becoming the country's wettest October.

The big wet hit the Banana Shire to deliver much-needed rain to local farmers.

Widespread storm activity lashed parts of the region's south, while patchy rainfall in the north of the shire meant many missed out on the monster totals.

In the past week, 26mm fell in Biloela, 25mm in Jambin, 28mm in Thangool and 21mm in Banana.

Theodore was drenched, registering a mammoth 164mm in three days over the weekend, flooding the highway to the town's south and prompting the Department of Transport and Main Roads to issue a warning to motorists.

Storm rolling in just out of Moura.Julie Watson

Bureau of Meteorology spokesman Adam Blazak said high-intensity storm cells began inland before dumping significant rainfall on the coastal fringes.

"They were big storms,” he said.

"Picture an imaginary line from Theodore to Gladstone on the coast.

"Anywhere to the south got between 50-100mm over the last week.

"The towns to the north were only in the 10-25mm range.”

A notable exception was the Bureau's Woodleigh station, roughly 30km south of Moura, that recorded a whopping 113mm on Friday night alone.

"Baralaba and those areas were still hit by the storms but it was not as intense,” Mr Blazak said.

"It was a really good indication of how some weather events can pour down in one location and completely miss a few stations over.”

Forecasters predict more rain is on the way, with a chance of storms developing this Friday and Sunday.